The correct answer is: C. Both (A) and (B).
Less rainfall means that there is less water available to leach the salts out of the soil. Insufficient leaching means that the water that does fall does not have enough time to percolate through the soil and carry the salts away. Both of these factors contribute to the accumulation of alkalis and salts on the soil surface in Haryana.
Alkalis and salts are naturally occurring in soil, but they can build up to harmful levels if they are not properly managed. When the soil is too alkaline, it can make it difficult for plants to absorb nutrients. Salts can also damage plants, and they can make the soil difficult to work with.
There are a number of ways to manage alkalis and salts in soil. One way is to add gypsum to the soil. Gypsum helps to neutralize the alkalinity and reduce the salt levels. Another way to manage alkalis and salts is to irrigate the soil with water that has a low salt content. This helps to leach the salts out of the soil.
It is important to manage alkalis and salts in soil in order to protect plants and ensure that the soil is healthy.